#Wrap .main{
    width: 1508px;
    height: 417px;
    /*	background: red;*/
    margin: auto;    /*居中*/
}
#Wrap .A{
    width: 664px;
    height: 417px;
    background: blueviolet;
    float: left;  /*左浮动*/
}
#Wrap .B{
    float: left;  /*左浮动*/
    margin-left: 2px;
}
#Wrap .B .A-box{
    width: 420px;
    height: 207px;
    background: yellowgreen;
}
#Wrap .B .B-box{
    width: 420px;
    height: 207px;
    background: yellow;
    margin-top: 3px;
}
#Wrap .C{
    float: left;  /*左浮动*/
    margin-left: 2px;
}
#Wrap .C .A-box{
    width: 420px;
    height: 207px;
    background: blue;
}
#Wrap .C .B-box{
    width: 420px;
    height: 207px;
    background: yellowgreen;
    margin-top: 3px;
}